<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style type="text/css">
			div {}
		</style>
	</head>
	<body>
		<div id="" style="width: 100px;height: 100px;background-color: #0000FF;float: left;">
			div1
		</div>
		<div id="" style="width: 200px;height: 200px;background-color:  #7FFF00;float: left;">
			div2
		</div>
		<div id="" style="width: 300px;height: 300px;background-color: #A52A2A;float: left;">
			div3
		</div>
		<div class="" style="clear: both;">
			<img src="css动画/img/dog.jpg">
		</div>
		
		
	</body>
</html>
